“…Considering the possible high computational costs, the Reynolds-averaged Navier–Stokes (RANS) equations are widely adopted for the gas phase in more complex scenarios, such as elevator ( Sen, 2021 ), airplane cabin zone ( Talaat et al, 2021 ), classroom ( He et al, 2021 ), restaurant ( Liu et al, 2021 ), bus ( Yang et al, 2022 ) and ship ( Huang et al, 2022 ). In particular, Dbouk and Drikakis (2020) used E–L approach to studied the cough droplets transport, where the effects of relative humidity, evaporation and wind speed etc.…”